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Edexcel A-Level Biology AS A 4 1 Circumference Area and Volume Questions

Review A-Level Edexcel Biology circumference, area and volume through pupil, cell, hydra and chloroplast calculations with unit conversions.

Syllabus
Pearson Edexcel International Advanced Subsidiary/Advanced Level
Course
Biology XBI11/YBI11
Level
AS

Exam points

  • calculate cell or pupil areas using radius, diameter and pi-based formulae
  • work out surface-area-to-volume ratios for cubes, hydra or cell shapes
  • convert units and report sphere or cell volumes in standard form where required

Edexcel A-Level Biology AS A 4 1 Circumference Area and Volume Questions question 1

[Maximum number: 2]

Gametes are specialised for their function.

A student used a microscope and a graticule to view a human egg cell.

The actual diameter of the egg cell was calculated to be 0.10 mm .
Calculate the volume of this egg cell in μm3\mu \mathrm{m}^{3}.
Use the formula:

V=43πr3V=\frac{4}{3} \pi r^{3}

Give your answer in standard form.

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